A new method shows a key relationship between the width and makeup of Earth’s river channels over time. The technique could be applied to other terrestrial bodies, such as Mars.
News
Seashells and Penguin Bones Reveal Thwaites Glacier’s Quiet Past
Antarctica’s Thwaites and Pine Island Glaciers are melting faster than they have in the past 5,500 years, new evidence shows. Against expectations, their pasts have been remarkably stable.
Community Science Project Helps Track Geohazard Risks in Uganda
A community project in the Kigezi Highlands is helping to identify landslide and flooding hot spots and how the hazards are evolving.
Wiretapped Cables and the Songs of Whales
Researchers jerry-rigged fiber-optic cables in a fjord to eavesdrop on blue whales, with possible applications ranging from seafloor mapping to meteorology.
Earth’s Wobbly Inner Core Illuminated by Nuclear Explosions
Shock waves from Cold War era nuclear tests gave seismologists a glimpse of the inner core. Its wobbly rotation could explain phenomena such as the periodic change in the length of a day.
Sorting Minerals Differently Could Usher a New Era for Mineralogy
Grouping minerals by how they were formed yields insights into our planet’s evolution across billions of years.
Hazardous Air Pollutants Found in Cooking Stove Gas
A Boston study revealed that natural gas piped into homes contained 21 toxins on the EPA’s hazardous air pollutant list.
Mapping a Volcanic Eruption in the Backyard of Iceland’s Capital
Researchers used satellites and aerial data to create regularly updated maps of the Fagradalsfjall eruption for both the public and disaster response agencies.
The Simple Usefulness of the Secchi Disk
A centuries-old sailor’s hack enters the ecologist’s toolkit.
Flipping the Sequence of Martian Formation
Analysis of the Chassigny meteorite suggests the planet acquired most of its interior volatiles from meteorites, not from the solar nebula.